Replacement for 01AG855: Drop-In Alternatives We Stock
Looking for a replacement for the 01AG855 (01AG855 - Lenovo 8GB PC4-21300 DDR4-2666MHz non-ECC Unbuffered CL19 SoDIMM 1.2V Single-Rank Memory Module)? Pro Disk Network ships IBM drop-in replacements and equivalent modern parts from US inventory. Every alternate below is in-stock today with same-day shipping for orders placed before 2pm ET. If your unit is still under warranty, contact our engineering team — we offer cross-shipping for B2B customers on Net 30 terms.
About the 01AG855
| SKU | 01AG855 |
|---|---|
| Product | 01AG855 - Lenovo 8GB PC4-21300 DDR4-2666MHz non-ECC Unbuffered CL19 SoDIMM 1.2V Single-Rank Memory Module |
| Current price | $256.16 |
| Stock status | In Stock |
| Detail page | View 01AG855 › |
Drop-in replacements for 01AG855
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
78P4200 - IBM 128GB DDR4-2666MHz PC4-21300 ECC Registered CL19 288-Pin DIMM 1.2V Octal Rank Memory Module
SKU: 78P4200
Price: $154.95
55Y3718 - IBM Lenovo 8GB DDR3-1333MHz PC3-10600 non-ECC Unbuffered CL9 204-Pin SoDimm Dual Rank Memory Module
SKU: 55Y3718
Price: $163.61
03X6401 - IBM Lenovo 8GB DDR3-1333MHz PC3-10600 non-ECC Unbuffered CL9 204-Pin SoDimm Dual Rank Memory Module for ThinkPad X1
SKU: 03X6401
Price: $163.61
43R0601 - IBM Lenovo 1GB DDR3-1066MHz PC3-8500 non-ECC Unbuffered CL7 204-Pin SoDimm Single Rank Memory Module
SKU: 43R0601
Price: $92.55
44C7955 - IBM Lenovo 1GB DDR3-1066MHz PC3-8500 non-ECC Unbuffered CL7 204-Pin SoDimm Single Rank Memory Module
SKU: 44C7955
Price: $92.55
57Y6508 - IBM Lenovo 1GB DDR3-1066MHz PC3-8500 non-ECC Unbuffered CL7 204-Pin SoDimm Single Rank Memory Module
SKU: 57Y6508
Price: $92.55
55Y3709 - IBM Lenovo 1GB DDR3-1333MHz PC3-10600 non-ECC Unbuffered CL9 204-Pin SoDimm Single Rank Memory Module
SKU: 55Y3709
Price: $92.55
64Y6650 - IBM Lenovo 1GB DDR3-1333MHz PC3-10600 non-ECC Unbuffered CL9 204-Pin SoDimm Single Rank Memory Module
SKU: 64Y6650
Price: $92.55
78Y7384 - IBM Lenovo 1GB DDR3-1333MHz PC3-10600 non-ECC Unbuffered CL9 204-Pin SoDimm Single Rank Memory Module
SKU: 78Y7384
Price: $92.55
78Y7383 - IBM Lenovo 1GB DDR3-1333MHz PC3-10600 non-ECC Unbuffered CL9 204-Pin SoDimm Single Rank Memory Module
SKU: 78Y7383
Price: $92.55
How we pick replacements
Every recommendation above was selected using these criteria:
- Drop-in compatibility — same form factor (2.5"/3.5", PCIe slot, SFP port, etc.), so it fits the original chassis without modification
- Equivalent or better performance — matched on RPM/IOPS/speed/throughput, never downgraded
- Same-brand-preferred — we list the OEM-equivalent first when available, then trusted aftermarket
- Warranty coverage — 90-day Pro Disk warranty on every part, with 1-year option for B2B
- In stock today — never recommend a part that is on backorder
Need help confirming compatibility?
Our engineers validate every replacement against your specific server, switch, or chassis model before shipment. Email sales@prodisknetwork.com with your platform model (e.g., Dell PowerEdge R740, HP DL380 Gen10, Cisco Catalyst 9300) and we will confirm the exact part number that drops into your hardware.